Lately, however, he has been one of their most invisible ones.

The students were excited that they got to use costumes and props as opposed to "invisible" ones.

The men wave small American flags and finally invisible ones.

The invisible ones were again making their advance.

And you keep your tendrils up for the invisible ones.

But the invisible ones are who I've always feared.

Our treaty is restricted to our fight against the invisible ones.

But the wailing of the invisible ones hovered over this dying victim.

Certainly, none of the Emperor's various suits, had ever made so great an impression, as these invisible ones.